Question

A billiard ball moves with 3 kg⋅m/s
of momentum and strikes three other billiard balls. What is the total momentum of the balls after the collision?(1 point)
Responses

It depends on the mass of each ball.
It depends on the mass of each ball.

more than 3 kg⋅m/s

more than 3 kilograms times meters per second

less than 3 kg⋅m/s

less than 3 kilograms times meters per second

3 kg⋅m/s

3 kilograms times meters per second

Answer 1

3 kg·m/s

Momentum is conserved in the collision (assuming no external horizontal forces), so the total momentum of all the balls after the collision is 3 kg·m/s.